一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List MFCD19219839
111759-98-9

MFCD19219839 synthesis

6synthesis methods
tert-butyl 3-(difluoromethyl)piperazine-1-carboxylate

1240621-52-6
19 suppliers
inquiry

MFCD19219839

111759-98-9
11 suppliers
inquiry

-

Yield:-

Reaction Conditions:

with hydrogenchloride in 1,4-dioxane at 25; for 1 h;

Steps:

17.1 Step 1: Synthesis of 2 -(difluoromethyl)piperazine

To a solution of tert-butyl 3-(difluoromethyl)piperazine-1-carboxylate (30 mg, 0.127 mmol) indioxane (2.0 mL) was added HC1/dioxane (4 N, 1.0 mL). The reaction solution was stirred at 25°C for 1 h. The reaction mixture was concentrated. The residue was used in next step directly without any further purification.

References:

WO2017/181117,2017,A1 Location in patent:Page/Page column 260

兴海县| 肃宁县| 闵行区| 博野县| 龙陵县| 淮安市| 咸阳市| 建宁县| 东乡族自治县| 益阳市| 彭山县| 铜山县| 乐安县| 黑龙江省| 田东县| 中西区| 广宗县| 鹰潭市| 平果县| 子长县| 永年县| 石家庄市| 桦甸市| 三明市| 专栏| 南汇区| 区。| 娱乐| 南充市| 临沂市| 福安市| 黑山县| 滦南县| 开平市| 广德县| 黔东| 黄冈市| 鸡泽县| 芦溪县| 保定市| 东平县|